In this paper we propose a novel approach to
heterogeneous embedded systems programmability using a taskgraph
based framework called Diplomat. Diplomat is a taskgraph
framework that exploits the potential of static dataflow
modeling and analysis to deliver performance estimation and
CPU/GPU mapping. An application has to be specified once, and
then the framework can automatically propose good mappings.
We evaluate Diplomat with a computer vision application on two
embedded platforms. Using the Diplomat generation we observed
a 16% performance improvement on average and up to a 30%
improvement over the best existing hand-coded implementation.